Random freezing problems on newly setup MacBook Pro

[CarterA]

Today I set up my brand new MacBook Pro, which I did by using Migration Assistant from my old Macbook (late 2007 model.) After making sure that everything was back to how I liked it, and all my settings were perfect, I have begun to notice I very annoying pattern. At random intervals (usually 5 to 10 minutes) my entire OS will simply freeze. My cursor is able to move, and send mouse-down events, but the WindowServer and other applications will not respond to the actions until the OS has become unfrozen. It comes back to life consistently after about 10 seconds. The way that I usually notice the freezing is that iTunes immediately stops playing. I am usually quite knowledgeable about my Mac, and yet I am currently completely stumped. Please, be as complex as you like in your possible answers: I'm willing to try just about anything. Here are the possible solutions I've already tried:
-Repair Permissions
-Full cleans/maintenance runs using the following programs:
a. OnyX
b. xMod
c. Cocktail
d. DiskWarrior
-Resetting PRAM
-Restarting the computer multiple times
-Apple Service Diagnostics
-Archive and Install
-Toggling of all plugins (APE, PlugSuit, SIMBL)

Does anyone have any ideas left for me?

 

[MacDawg]

Did you upgrade the RAM?
Did you upgrade the HD?
Do you have any "hacks" to your system (for the dock, icons, etc)?
Do you have any unusual 3rd party software you run?
Do you torrent?
Do you have a Boot Camp partition?
Do you have all the software updates?

First thoughts that came to my mind

Woof, Woof - Dawg

 

[CarterA]

Did you upgrade the RAM?
Did you upgrade the HD?
Do you have any "hacks" to your system (for the dock, icons, etc)?
Do you have any unusual 3rd party software you run?
Do you torrent?
Do you have a Boot Camp partition?
Do you have all the software updates?

First thoughts that came to my mind

Woof, Woof - Dawg

1. No
2. Docks, and icons. All are applied safely using tested methods, and none are applied at runtime (they will not cause slowdown.)
3. Adobe CS4, that is as weird as it gets.
4. Only the official releases from the iPhone dev team.
5. No.
6. Yes.